JP4205543B2 - Small ship - Google Patents

Small ship Download PDF

Info

Publication number
JP4205543B2
JP4205543B2 JP2003317503A JP2003317503A JP4205543B2 JP 4205543 B2 JP4205543 B2 JP 4205543B2 JP 2003317503 A JP2003317503 A JP 2003317503A JP 2003317503 A JP2003317503 A JP 2003317503A JP 4205543 B2 JP4205543 B2 JP 4205543B2
Authority
JP
Japan
Prior art keywords
sponson
small
water
inclined portion
small boat
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2003317503A
Other languages
Japanese (ja)
Other versions
JP2005082045A (en
Inventor
隆夫 ▲高▼地
政彦 土谷
元 勝賀瀬
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP2003317503A priority Critical patent/JP4205543B2/en
Priority to CA002480834A priority patent/CA2480834C/en
Priority to US10/935,077 priority patent/US7168386B2/en
Publication of JP2005082045A publication Critical patent/JP2005082045A/en
Application granted granted Critical
Publication of JP4205543B2 publication Critical patent/JP4205543B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/04—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull
    • B63B1/042—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with single hull the underpart of which being partly provided with channels or the like, e.g. catamaran shaped
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/18—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
    • B63B2001/186—Sponsons; Arrangements thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
    • B63B34/10—Power-driven personal watercraft, e.g. water scooters; Accessories therefor

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Farming Of Fish And Shellfish (AREA)
  • Hydraulic Turbines (AREA)
  • Control Of Vehicle Engines Or Engines For Specific Uses (AREA)

Description

本発明は小型船に係り、特に、艇体を構成する左右の側壁に、翼部としてスポンソンを取り付けた小型船に関する。   The present invention relates to a small boat, and more particularly to a small boat in which sponsons are attached as wing parts to left and right side walls constituting a hull.

海面や湖面を滑走する小型船として、艇体の後部にジェット推進機を取り付け、このジェット推進機をエンジンで駆動することにより艇底から水を吸い込み、吸い込んだ水を後方に噴射して推進する小型推進艇が知られている。
この小型船は艇体の左右側壁に前後に延びるスポンソンを備える。（例えば、特許文献１参照。）。
特開平１０−７６９９０号公報（図２） As a small ship that slides on the surface of the sea or lake, a jet propulsion unit is attached to the rear of the hull, and the jet propulsion unit is driven by an engine to suck in water from the bottom of the boat and propel the sucked water back by propelling it. Small propulsion boats are known.
This small ship is equipped with sponsons extending in the front and rear on the left and right side walls of the hull. (For example, refer to Patent Document 1).
JP-A-10-76990 (FIG. 2)

特許文献１を以下の図面に基づいて説明する。
図９は従来の基本構成を説明する図である。
小型船１００は、艇体１０１の艇尾１０２にジェット推進機１０３を備え、左右の側壁１０４，１０５の後部にそれぞれ左右のスポンソン１０６，１０７を備える。
左右の側壁にスポンソン１０６，１０７を取り付けることで、左右のスポンソン１０６，１０７をそれぞれの側壁１０４，１０５から外側に張り出す。 Patent document 1 is demonstrated based on the following drawings.
FIG. 9 is a diagram for explaining a conventional basic configuration.
The small boat 100 includes a jet propulsion device 103 at the stern 102 of the hull 101 and left and right sponsons 106 and 107 at the rear portions of the left and right side walls 104 and 105, respectively.
By attaching the sponsons 106 and 107 to the left and right side walls, the left and right sponsons 106 and 107 project outward from the respective side walls 104 and 105.

小型船１００のステアリングノズル１１７から後方に水ジェットを噴射させて、小型船１００を直進状態で滑走させる。
小型船１００が直進状態で滑走する際に、左右のスポンソン１０６，１０７の上部１０８，１０９が水面１１１から浮き上がり、左右のスポンソン１０６，１０７のそれぞれの滑走部１１２，１１３が水面１１１に接触する。
これにより、小型船１００が滑走しているときの艇体表面積を大きく確保する。 A water jet is jetted backward from the steering nozzle 117 of the small boat 100, and the small boat 100 is slid straightly.
When the small boat 100 slides straight, the upper portions 108 and 109 of the left and right sponsons 106 and 107 are lifted from the water surface 111, and the respective sliding portions 112 and 113 of the left and right sponsons 106 and 107 are in contact with the water surface 111.
This ensures a large hull surface area when the small boat 100 is sliding.

図１０（ａ），（ｂ）は従来の小型船を旋回操作する例を説明する図である。
（ａ）において、小型船１００が直進状態で滑走中に、乗員１１５が操作ハンドル１１６を矢印ａ１の如く操作することにより、艇尾１０２のステアリングノズル１１７を矢印ｂ１の如くスイング移動させる。 FIGS. 10A and 10B are diagrams illustrating an example of turning a conventional small boat.
In (a), while the small boat 100 is sliding straight, the occupant 115 operates the operation handle 116 as indicated by an arrow a1, thereby swinging the steering nozzle 117 of the stern 102 as indicated by an arrow b1.

（ｂ）において、ステアリングノズル１１７をスイング移動することで、ステアリングノズル１１７から水ジェット１１８を矢印ｃ１の如く斜めに向けて噴射する。
これにより、艇体１０１の艇尾１０２を右方向に矢印ｄ１の如く移動させて、小型船１００が左旋回を開始する。
この際に、小型船１００が左側に傾いて、左のスポンソン１０６が水中に沈む。
このため、左のスポンソン１０６に対する横方向への水の抵抗が大きくなり、艇尾１０２の右方向への移動量を小さく抑える。 In (b), by swinging the steering nozzle 117, the water jet 118 is jetted obliquely as indicated by the arrow c1 from the steering nozzle 117.
As a result, the stern 102 of the hull 101 is moved in the right direction as indicated by the arrow d1, and the small boat 100 starts to turn left.
At this time, the small boat 100 tilts to the left, and the left sponson 106 sinks into the water.
For this reason, the resistance of water in the lateral direction with respect to the left sponson 106 is increased, and the amount of movement of the stern 102 in the right direction is kept small.

図１１は従来の小型船が旋回する例を説明する図である。
艇尾１０２の矢印ｄ１への移動量を小さく抑え、小型船１００を旋回軌跡１１９のように大きな円弧を描いて大回りに旋回させる。 FIG. 11 is a diagram illustrating an example in which a conventional small boat turns.
The amount of movement of the stern 102 in the direction of the arrow d1 is kept small, and the small boat 100 is swung around a large arc like a turning locus 119.

ところで、小型船１００は、近年多種の用途に適用されている。このため、小型船１００のなかに、大きな円弧の旋回軌跡を描く旋回（大回り）に適しているものや、小さな円弧の旋回軌跡を描く旋回（小回り）に適しているものを揃えておくと、使用者は、それぞれの用途に合わせて、好みの小型船１００を選択することができる。
そこで、小型船を多種の用途に好適に適用させるために、従来の小型船と比べて小さな円弧の旋回軌跡を描く旋回に適した小型船の実用化が望まれていた。 By the way, the small boat 100 is applied to various uses in recent years. For this reason, in the small boat 100, those suitable for turning (large turning) that draw a turning trajectory of a large arc and those suitable for turning (small turning) that draw a turning trajectory of a small arc are prepared. The user can select a favorite small boat 100 according to each application.
Therefore, in order to suitably apply the small ship to various applications, it has been desired to put into practical use a small ship suitable for turning which draws a turning trajectory having a smaller arc than that of a conventional small ship.

本発明は、小型船が旋回する際に、小さな円弧の旋回軌跡を描く旋回（小回り）に適した小型船を提供することを課題とする。   An object of the present invention is to provide a small boat suitable for turning (small turning) that draws a turning trajectory of a small arc when the small boat turns.

請求項１に係る発明は、艇体を構成する左右の側壁に、前後方向に延びるスポンソンをそれぞれ取り付けた小型船において、前記スポンソンは、前記側壁に当接する取付部と、この取付部の下辺から略水平に張り出した滑走部と、この滑走部の側辺および前記取付部の上辺をつなぐ傾斜部と、この傾斜部から上方へ突出した突起部とを備え、前記傾斜部に沿って流れる水を、前記突起部で案内して傾斜部から離すことを特徴とする。   The invention according to claim 1 is a small boat in which spongsons extending in the front-rear direction are respectively attached to the left and right side walls constituting the hull, and the sponsons are formed from an attachment portion that contacts the side walls and a lower side of the attachment portion. A sliding portion projecting substantially horizontally, an inclined portion connecting the side of the sliding portion and the upper side of the mounting portion, and a protruding portion protruding upward from the inclined portion, and water flowing along the inclined portion The projection is guided by the protrusion and separated from the inclined portion.

スポンソンの傾斜部に上辺から下辺まで延びる突起部を形成する。この突起部で、傾斜部に沿って流れる水を案内して傾斜部から水を離す。
このように、スポンソンの傾斜部から水を離すことで、スポンソンに対する横方向への水の抵抗を小さく抑え、いわゆるスポンソンの水に対するグリップを適度に抑える。
よって、小型船を旋回させる際に、艇体の艇尾を旋回方向と反対側に比較的大きく移動させて、小型船を小さな円弧の旋回軌跡を描く旋回、すなわち小回りさせることができる。 Protrusions extending from the upper side to the lower side are formed on the inclined portion of the sponson. With this protrusion, the water flowing along the inclined portion is guided to separate the water from the inclined portion.
Thus, by separating the water from the inclined part of the sponson, the resistance of the water in the lateral direction with respect to the sponson is suppressed, and the so-called sponson's grip on the water is moderately suppressed.
Therefore, when turning the small boat, the stern of the hull can be moved relatively large in the direction opposite to the turning direction, and the small boat can be turned to make a small arc turning trajectory, that is, to make a small turn.

請求項２に係る発明は、傾斜部を上辺から下辺に向けて下り勾配に傾斜し、突起部を傾斜部の上端から下端に向けて後方へ延びるように形成したことを特徴とする。   The invention according to claim 2 is characterized in that the inclined portion is inclined downward from the upper side to the lower side, and the protrusion is formed to extend rearward from the upper end to the lower end of the inclined portion.

ここで、スポンソンの傾斜部に沿って流れる水を突起部で案内して傾斜部から水を離すためには、水を円滑に流す必要がある。
そこで、請求項２において、傾斜部を上辺から下辺に向けて下り勾配に傾斜し、突起部を傾斜部の上辺から下辺に向けて後方へ延びるように形成した。
傾斜部を上辺から下辺に向けて下り勾配に傾斜することで、傾斜部で水を外側に向けて案内する。よって、傾斜部に沿って円滑に流すことができる。 Here, in order to guide the water flowing along the sloping portion of the sponsons by the protrusion and separate the water from the sloping portion, it is necessary to smoothly flow the water.
Therefore, in claim 2, the inclined portion is inclined downwardly from the upper side to the lower side, and the protrusion is formed to extend backward from the upper side to the lower side of the inclined portion.
By inclining the inclined part downward from the upper side to the lower side, the inclined part guides water outward. Therefore, it can flow smoothly along the inclined portion.

また、突起部を傾斜部の上辺から下辺に向けて後方へ延びるように形成することで、傾斜部を外側に向けて流れる水の流れを突起部で遮らないようにする。
このように、傾斜部に沿って水を円滑に流し、かつ突起部で水の流れを遮らないようにすることで、スポンソンの傾斜部に沿って流れる水を突起部で案内し、傾斜部から水を確実に離すことができる。
よって、小型船を旋回させる際に、艇体の艇尾を旋回方向と反対側に比較的大きく移動させて、小型船を小さな円弧の旋回軌跡を描く旋回、すなわち小回りさせることができる。 Further, the protrusion is formed so as to extend rearward from the upper side to the lower side of the inclined part, so that the flow of water flowing toward the outer side of the inclined part is not blocked by the protrusion.
In this way, by flowing water smoothly along the inclined portion and not blocking the flow of water at the protruding portion, the water flowing along the inclined portion of Sponson is guided by the protruding portion, and from the inclined portion. Water can be surely released.
Therefore, when turning the small boat, the stern of the hull can be moved relatively large in the direction opposite to the turning direction, and the small boat can be turned to make a small arc turning trajectory, that is, to make a small turn.

請求項３に係る発明は、スポンソンをボルトなどの取付部材で側壁に取り付け、この取付部材を避けて突起部を設けたことを特徴とする。   The invention according to claim 3 is characterized in that the sponson is attached to the side wall with an attachment member such as a bolt, and a projection is provided to avoid this attachment member.

スポンソンを取り付ける取付部材を避けて突起部を設けることで、突起部を設ける部位を、新たに設けることなく容易に確保することができる。   By providing the projecting portion while avoiding the attachment member to which the sponson is attached, it is possible to easily secure a portion for providing the projecting portion without newly providing the site.

請求項４に係る発明は、突起部をスポンソンの前端部と後端部との間に複数個設け、これら複数の突起部のうち、最前列に配置し、かつスポンソンの前端部に設けた突起部を、その他の突起部より小さく形成したことを特徴とする。   In the invention according to claim 4, a plurality of protrusions are provided between the front end portion and the rear end portion of the sponson, and the protrusions disposed in the foremost row among the plurality of protrusions and provided at the front end portion of the sponson. The portion is formed to be smaller than the other protrusions.

複数の突起部のうち、最前列に配置し、かつスポンソンの前端部に設けた突起部を小さくすることで、水をスポンソンの後方に円滑に流すことができる。
よって、後方の突起部でスポンソンの傾斜部に沿って流れる水を良好に案内して、傾斜部から水を確実に離すことができる。
これにより、小型船を旋回させる際に、艇体の艇尾を旋回方向と反対側に比較的大きく移動させて、小型船を小さな円弧の旋回軌跡を描く旋回、すなわち小回りさせることができる。 Of the plurality of protrusions, the protrusions disposed in the foremost row and provided at the front end portion of the sponson can be made small to allow water to flow smoothly behind the sponson.
Therefore, the water flowing along the inclined part of the sponsons can be guided well by the rear protrusion, and the water can be reliably separated from the inclined part.
As a result, when turning the small boat, the stern of the hull can be moved relatively large in the direction opposite to the turning direction, and the small boat can be turned to make a small arc turning trajectory, that is, to make a small turn.

請求項１に係る発明では、スポンソンの傾斜部に突起部を形成することで、小型船を小さな円弧の旋回軌跡を描く旋回をさせて、用途に応じた好適な旋回特性を得ることができるという利点がある。
請求項２に係る発明では、傾斜部を下り勾配に傾斜し、かつ突起部を後方へ延びるように形成して傾斜部から水を確実に離すことで、小型船を小さな円弧の旋回軌跡を描く旋回をさせて、用途に応じた好適な旋回特性を得ることができるという利点がある。 In the invention according to claim 1, by forming a protrusion on the inclined portion of the sponson, the small ship can be turned to draw a turning trajectory of a small arc, and a suitable turning characteristic according to the application can be obtained. There are advantages.
In the invention according to claim 2, the small ship is drawn with a small circular turning trajectory by forming the inclined part in a downward slope and forming the projection part to extend rearward to reliably separate the water from the inclined part. There is an advantage that it is possible to obtain a suitable turning characteristic according to the application by turning.

請求項３に係る発明では、突起部を設ける部位を、新たに設けることなく容易に確保することで、スポンソンを好適な形状にすることができるという利点がある。   In the invention which concerns on Claim 3, there exists an advantage that a sponson can be made into a suitable shape by ensuring easily the site | part which provides a projection part, without newly providing.

請求項４に係る発明では、複数の突起部のうち、最前列に配置し、かつスポンソンの前端部に設けた突起部を小さくすることで、水をスポンソンの後方に円滑に流し、小型船を小さな円弧の旋回軌跡を描く旋回をさせて、用途に応じた好適な旋回特性を得ることができるという利点がある。   In the invention which concerns on Claim 4, by arrange | positioning in the front row among several protrusion parts, and making small the protrusion part provided in the front-end part of a sponson, water can flow smoothly to the back of a sponson, A small ship There is an advantage that it is possible to obtain a suitable turning characteristic according to the application by making a turn drawing a turning locus of a small arc.

本発明を実施するための最良の形態を添付図に基づいて以下に説明する。なお、図面は符号の向きに見るものとする。
図１は本発明に係る小型船の側面図である。
小型船１０は、艇体１１の前部１２に燃料タンク１３を取り付け、この燃料タンク１３の上方に操舵ハンドル１４を備え、この操舵ハンドル１４の後方に鞍乗り式のシート１５を備え、このシート１５の下方にエンジン１６を設け、このエンジン１６後方の艇尾２２に推進機室２３を設け、この推進機室２３にジェット推進機２４を備えた小型推進艇である。
艇体１１は、ハル２５で艇底２６側を形成し、このハル２５にデッキ２７を重ねたものである The best mode for carrying out the present invention will be described below with reference to the accompanying drawings. The drawings are viewed in the direction of the reference numerals.
FIG. 1 is a side view of a small boat according to the present invention.
The small boat 10 has a fuel tank 13 attached to the front portion 12 of the hull 11, a steering handle 14 provided above the fuel tank 13, and a saddle-type seat 15 provided behind the steering handle 14. 15 is a small propulsion boat in which an engine 16 is provided below 15, a propulsion unit chamber 23 is provided in a stern 22 behind the engine 16, and a jet propulsion unit 24 is provided in the propulsion unit chamber 23.
The hull 11 is formed by forming a boat bottom 26 side with a hull 25 and stacking a deck 27 on the hull 25.

ジェット推進機２４は、艇底２６の吸込口２８から後方へ延びたハウジング２９を有し、このハウジング２９内にインペラ３１を回転自在に取り付け、インペラ３１をエンジン１６の駆動軸３２に連結したものである。
エンジン１６でインペラ３１を回転することにより、艇底２６の吸込口２８から水を吸い込み、吸い込んだ水をハウジング２９を通してジェット水としてステアリングノズル３３に導く。
ステアリングノズル３３に導いたジェット水を、ステアリングノズル３３の後端部から噴射することにより小型船１０を推進させる。 The jet propulsion unit 24 has a housing 29 extending rearward from a suction port 28 of the boat bottom 26, and an impeller 31 is rotatably mounted in the housing 29, and the impeller 31 is connected to a drive shaft 32 of the engine 16. It is.
By rotating the impeller 31 with the engine 16, water is sucked from the suction port 28 of the boat bottom 26, and the sucked water is guided to the steering nozzle 33 through the housing 29 as jet water.
The jet water guided to the steering nozzle 33 is jetted from the rear end portion of the steering nozzle 33 to propel the small boat 10.

図２は本発明に係る小型船の要部を示す側面図である。
艇体１１の艇底２６側をハル２５で形成し、ハル２５を構成する左右の側壁３５，３６（右の側壁３６は図７（ａ）参照）に、前後方向に延びる左右のスポンソン４０，４１（スポンソン）をそれぞれ取り付ける。右のスポンソン４１は図６（ｂ）、図７（ａ）に示す。
左右の側壁３５，３６にそれぞれ左右のスポンソン４０，４１を取り付けることで、左右のスポンソン４０，４１をそれぞれの側壁３５，３６から外側に張り出す。 FIG. 2 is a side view showing a main part of the small boat according to the present invention.
The hull 25 is formed with the hull 25 on the bottom 26 side of the hull 11, and left and right sponsons 40 extending in the front-rear direction on left and right side walls 35 and 36 (see FIG. 7A for the right side wall 36) constituting the hull 25. Attach 41 (Sponsons). The right sponson 41 is shown in FIGS. 6 (b) and 7 (a).
By attaching left and right sponsons 40 and 41 to the left and right side walls 35 and 36, respectively, the left and right sponsons 40 and 41 project outward from the respective side walls 35 and 36.

より具体的には、左のスポンソン４０を、左の側壁３５の後部３５ａのうち、艇底２６近傍の部位に、３本のボルト４２…（…は複数を示す）で取り付けた翼形の部材である。
また、図７（ａ）に示す右のスポンソン４１は、左のスポンソン４０と同様に、右の側壁３６の後部３６ａのうちの、艇底２６近傍の部位に、３本のボルト４２…（図示せず）で取り付けた翼形の部材である。 More specifically, an airfoil member in which the left sponson 40 is attached to a portion in the vicinity of the boat bottom 26 in the rear portion 35a of the left side wall 35 with three bolts 42 (... indicates a plurality). It is.
Further, the right sponson 41 shown in FIG. 7A is provided with three bolts 42 at a portion of the rear portion 36a of the right side wall 36 in the vicinity of the bottom 26, like the left sponson 40 (FIG. 7). (Not shown).

左右のスポンソン４０，４１は、小型船１０が直進状態で滑走しているとき水面から浮き上がり、左右のスポンソン４０，４１の底面、すなわち滑走部４５，４６（図７（ａ）参照）が水面に接触する。
このように、左右のスポンソン４０，４１の滑走部４５，４６を水面に接触させることにより、小型船１０が滑走しているときの艇体表面積を大きく確保する。
なお、左右のスポンソン４０，４１は左右対称の部材なので、以下、左のスポンソン４０について説明して右のスポンソン４１の説明は省略する。 The left and right sponsons 40 and 41 are lifted from the water surface when the small boat 10 is sliding straight, and the bottom surfaces of the left and right sponsons 40 and 41, that is, the sliding portions 45 and 46 (see FIG. 7A) are on the water surface. Contact.
In this way, by bringing the sliding portions 45 and 46 of the left and right sponsons 40 and 41 into contact with the water surface, a large hull surface area is ensured when the small boat 10 is sliding.
Since the left and right sponsons 40 and 41 are symmetrical members, the left sponson 40 will be described below and the right sponson 41 will not be described.

図３は本発明に係る小型船に備えたスポンソンを示す斜視図である。
スポンソン４０は、艇体１１の前方から後方に延びるように形成し、かつ前端部４３を先細状に形成した翼形の部材である。
このスポンソン４０は、ハル２５の左の側壁（側壁）３５に当接する取付部４７と、この取付部４７の下辺４８から略水平に張り出した滑走部４５と、この滑走部４５の側辺５１から下方に膨出した膨出部５２と、この膨出部５２および取付部４７の上辺４９をつなぐ傾斜部５３と、この傾斜部５３の上辺５４から下辺５５まで突条に延ばした３本の突起部５７…とを備え、傾斜部５３に沿って流れる水を、それぞれの突起部５７…で案内して傾斜部５３から離すものである。 FIG. 3 is a perspective view showing a sponson provided in the small boat according to the present invention.
The sponson 40 is an airfoil member formed so as to extend rearward from the front of the hull 11 and having a front end 43 formed in a tapered shape.
The sponson 40 includes a mounting portion 47 that contacts the left side wall (side wall) 35 of the hull 25, a sliding portion 45 projecting substantially horizontally from a lower side 48 of the mounting portion 47, and a side edge 51 of the sliding portion 45. A bulging portion 52 bulging downward, an inclined portion 53 connecting the bulging portion 52 and the upper side 49 of the mounting portion 47, and three protrusions extending from the upper side 54 to the lower side 55 of the inclined portion 53 .., And the water flowing along the inclined portion 53 is guided by the projections 57 to be separated from the inclined portion 53.

傾斜部５３の前部５３ａ、中央部５３ｂ、後部５３ｃにそれぞれ取付用の凹部６１…を備え、凹部６１…の底部、すなわち取付部４７に取付孔６２…（図５も参照）を備える。
取付孔６２…にボルト４２…を差し込み、差し込んだボルト４２…を左の側壁３５の取付孔６３…に差し込み、ハル２５の裏側に突出したボルト４２…にナット６４…（図５も参照）を締め付けることにより、左の側壁３５にスポンソン４０を取り付ける。
ボルト４２…およびナット６４…は、スポンソン４０を、ハル２５の左の側壁３５に取り付ける取付部材を構成する。 The front portion 53a, the central portion 53b, and the rear portion 53c of the inclined portion 53 are provided with recessed portions 61 for mounting, respectively, and the bottom portion of the recessed portion 61, that is, the mounting portion 47 is provided with mounting holes 62 (see also FIG. 5).
The bolts 42 are inserted into the mounting holes 62, the inserted bolts 42 are inserted into the mounting holes 63 in the left side wall 35, and the nuts 64 (see also FIG. 5) are inserted into the bolts 42 projecting from the back side of the hull 25. The sponson 40 is attached to the left side wall 35 by tightening.
The bolts 42 and nuts 64 constitute a mounting member for attaching the sponson 40 to the left side wall 35 of the hull 25.

スポンソン４０をボルト４２…およびナット６４…などの取付部材で左の側壁３５に取り付け、ボルト４２…（取付部材）を避けて突起部５７…を設けた。
このように、スポンソン４０を取り付けるボルト４２…（取付部材）を避けて突起部５７…を設けることで、突起部５７…を設ける部位を、新たに設けることなく容易に確保できる。 The sponsons 40 were attached to the left side wall 35 with attachment members such as bolts 42 and nuts 64, and the projections 57 were provided avoiding the bolts 42 (attachment members).
In this way, by providing the protrusions 57... Avoiding the bolts 42 (attachment members) for attaching the sponsons 40, it is possible to easily secure a site for providing the protrusions 57.

傾斜部５３は、上辺５４から下辺５５に向けて下り勾配に傾斜させた部材である。
この傾斜部５３に、傾斜部５３の上辺５４から下辺５５まで延ばした３本の突起部５７…を備える。
突起部５７…は、傾斜部５３の表面５６から所定高さＨ（図５も参照）で突出させた細い筋状の部位である。 The inclined portion 53 is a member that is inclined downwardly from the upper side 54 toward the lower side 55.
The inclined portion 53 includes three protrusions 57 extending from the upper side 54 to the lower side 55 of the inclined portion 53.
The protrusions 57 are thin streak portions protruding from the surface 56 of the inclined portion 53 at a predetermined height H (see also FIG. 5).

突起部５７…は、傾斜部５３の上辺５４から下辺５５に向けて後方へ延びるよう突条に形成することで長さＬ、傾斜角θの下り勾配に形成した部材である。
突起部５７の高さＨ、長さＬ、傾斜角θは、小型船１０の旋回状態に合わせて適宜選択する。 The protrusions 57 are members formed in a downward slope with a length L and an inclination angle θ by forming the protrusions so as to extend rearward from the upper side 54 to the lower side 55 of the inclined part 53.
The height H, length L, and inclination angle θ of the protrusion 57 are appropriately selected according to the turning state of the small boat 10.

このように、突起部５７…をスポンソン４０の前端部４３と後端部４４との間に複数個（３個）設けた。そして、これら複数の突起部５７…のうち、最前列に配置し、かつスポンソン４０の前端部４３に設けた突起部５７（以下、便宜上、最前列の突起部５７を５７ａとして説明する）を、その他の突起部５７，５７より小さく形成する。   In this way, a plurality (three) of the protrusions 57 are provided between the front end portion 43 and the rear end portion 44 of the sponson 40. Of the plurality of protrusions 57, a protrusion 57 arranged in the front row and provided at the front end 43 of the sponson 40 (hereinafter, the protrusion 57 in the front row is described as 57a for convenience) It is formed smaller than the other protrusions 57 and 57.

最前列の突起部５７ａを、その他の２個の突起部５７，５７より小さくすることで、水をスポンソン４０の後方に円滑に流すことができる。
よって、最前列の突起部５７ａの後方の突起部５７，５７でスポンソン４０の傾斜部５３に沿って流れる水を良好に案内して、傾斜部５３から水を確実に離すことができる。 By making the foremost row of projections 57a smaller than the other two projections 57, 57, water can flow smoothly behind the sponson 40.
Therefore, the water flowing along the inclined portion 53 of the sponson 40 can be guided well by the protruding portions 57, 57 behind the protruding portion 57a in the front row, and the water can be reliably separated from the inclined portion 53.

なお、傾斜部５３を上辺５４から下辺５５に向けて下り勾配に傾斜し、突起部５７…を傾斜部５３の上辺５４から下辺５５に向けて後方へ延びるように形成した理由については次図で詳しく説明する。   The reason why the inclined portion 53 is inclined downwardly from the upper side 54 toward the lower side 55 and the protrusions 57 are formed so as to extend rearward from the upper side 54 to the lower side 55 of the inclined portion 53 in the following figure. explain in detail.

図４は本発明に係る小型船に備えたスポンソンを示す側面図である。
スポンソン４０をボルト４２でハル２５の左の側壁３５に取り付ける。小型船１０が左旋回することにより、スポンソン４０が水中に沈む。この際に、水が矢印ａの如く流れ、水を突起部５７…（最前列の突起部５７ａを含む）で案内して傾斜部５３の表面５６から浮き上がらせる。
よって、突起部５７…の後方部位に、小さな渦流からなる剥離層６５…ができ、剥離層６５…において水を傾斜部５３の表面５６から離すことができる。 FIG. 4 is a side view showing a sponson provided in the small boat according to the present invention.
The sponson 40 is attached to the left side wall 35 of the hull 25 with a bolt 42. As the small boat 10 turns to the left, the sponsons 40 sink into the water. At this time, water flows as indicated by an arrow a, and the water is guided by the protrusions 57 (including the protrusions 57a in the front row) and floats from the surface 56 of the inclined portion 53.
Therefore, a release layer 65 made of a small vortex can be formed at the rear portion of the projections 57..., And water can be separated from the surface 56 of the inclined portion 53 in the release layer 65.

このように、スポンソン４０の傾斜部５３から水を離すことで、スポンソン４０に対する横方向への水の抵抗を小さく抑え、いわゆるスポンソン４０の水に対するグリップを適度に抑えることが可能になる。
よって、小型船１０を旋回させる際に、艇体１１の艇尾２２（図２参照）後部を旋回側と反対側に比較的大きく移動させて、小型船１０を小さな円弧の旋回軌跡を描く旋回、すなわち小回りさせることができる。 In this way, by separating the water from the inclined portion 53 of the sponson 40, it is possible to reduce the resistance of the water in the lateral direction with respect to the sponson 40 and moderately suppress the grip of the so-called sponson 40 with respect to the water.
Therefore, when the small boat 10 is turned, the rear portion of the stern 22 (see FIG. 2) of the hull 11 is relatively moved to the opposite side to the turning side, and the small boat 10 is turned so as to draw a small circular turning locus. That is, it is possible to make a small turn.

ところで、スポンソン５０の傾斜部５３に沿って流れる水を突起部５７…（最前列の突起部５７ａを含む）で案内して傾斜部５３から水を離すためには、水を円滑に流す必要がある。
そこで、傾斜部５３を上辺５４から下辺５５に向けて下り勾配に傾斜し、突起部５７…（最前列の突起部５７ａを含む）を傾斜部５３の上辺５４から下辺５５に向けて後方へ延びるように形成した。
傾斜部５３を上辺５４から下辺５５に向けて下り勾配に傾斜することで、傾斜部５３で水を外側に向けて案内する。よって、傾斜部５３に沿って円滑に流すことができる。 By the way, in order to guide the water flowing along the inclined portion 53 of the sponson 50 by the protrusions 57 (including the frontmost protrusions 57a) and separate the water from the inclined portion 53, it is necessary to smoothly flow the water. is there.
Therefore, the inclined portion 53 is inclined downward from the upper side 54 toward the lower side 55, and the protrusions 57 (including the frontmost protrusions 57a) extend rearward from the upper side 54 to the lower side 55 of the inclined portion 53. Formed as follows.
By inclining the inclined portion 53 downward from the upper side 54 toward the lower side 55, the inclined portion 53 guides water outward. Therefore, it can flow smoothly along the inclined portion 53.

また、突起部５７…を傾斜部５３の上辺５４から下辺５５に向けて後方へ延びるように形成することで、突起部５７…で水の流れを遮らないようにする。
このように、傾斜部５３に沿って水を円滑に流し、かつ突起部５７…で水の流れを遮らないようにすることで、スポンソン４０の傾斜部５３に沿って流れる水を突起部５７…で案内し、傾斜部５３から水を確実に離すことができる。
よって、小型船１０を旋回させる際に、艇体１１の艇尾２２（図２参照）を旋回方向と反対側に比較的大きく移動させて、小型船１０を小さな円弧の旋回軌跡を描く旋回、すなわち小回りさせることができる。 Further, the protrusions 57 are formed so as to extend rearward from the upper side 54 to the lower side 55 of the inclined part 53 so that the protrusions 57 do not block the flow of water.
In this way, the water flowing along the inclined portion 53 of the sponson 40 can be made to flow smoothly along the inclined portion 53 and the flow of the water is not blocked by the protruding portion 57. The water can be reliably separated from the inclined portion 53.
Therefore, when the small boat 10 is turned, the stern 22 (see FIG. 2) of the hull 11 is relatively moved to the opposite side to the turning direction, and the small boat 10 is turned so as to draw a turning trajectory of a small arc. That is, it is possible to make a small turn.

図５は図４の５−５線断面図である。
傾斜部５３に凹部６１…を備え、凹部６１…の底部、すなわち取付部４７に取付孔６２…を備える。
取付孔６２…にボルト４２…を差し込み、差し込んだボルト４２…を左の側壁３５の取付孔６３…に差し込み、左の側壁３５の裏側に突出したボルト４２…にナット６４…を締め付けることにより、左の側壁３５にスポンソン４０を取り付ける。 5 is a cross-sectional view taken along line 5-5 of FIG.
The inclined portion 53 is provided with concave portions 61... And the bottom of the concave portions 61.
The bolts 42 are inserted into the mounting holes 62, the inserted bolts 42 are inserted into the mounting holes 63 of the left side wall 35, and the nuts 64 are tightened on the bolts 42 protruding from the back side of the left side wall 35. A sponson 40 is attached to the left side wall 35.

スポンソン４０をボルト４２でハル２５の左の側壁３５に取り付けることで、ハル２５の左の側壁３５に取付部４７が当接する。この取付部４７の下辺４８から略水平に滑走部４５を張り出し、滑走部４５の側辺５１から膨出部５２を下方に膨出し、膨出部５２および取付部４７の上辺４９を傾斜部５３でつなぐ。
これにより、スポンソン４０の滑走部４５および傾斜部５３を左の側壁３５から外側に張り出す。
左の側壁３５から張り出した傾斜部５３の上辺５４から下辺５５まで３本の突起部５７…（図３、図４も参照）を延ばす。 By attaching the sponson 40 to the left side wall 35 of the hull 25 with the bolt 42, the mounting portion 47 abuts on the left side wall 35 of the hull 25. The sliding portion 45 projects substantially horizontally from the lower side 48 of the mounting portion 47, the bulging portion 52 bulges downward from the side 51 of the sliding portion 45, and the bulging portion 52 and the upper side 49 of the mounting portion 47 are inclined to the inclined portion 53. Connect.
As a result, the sliding portion 45 and the inclined portion 53 of the sponson 40 project outward from the left side wall 35.
Three protrusions 57 (see also FIGS. 3 and 4) are extended from the upper side 54 to the lower side 55 of the inclined portion 53 protruding from the left side wall 35.

次に、本発明に係る小型船１０に備えたスポンソン４０の作用を図６〜図８に基づいて説明する。
図６（ａ），（ｂ）は本発明に係る小型船を滑走した状態を説明する図である。
（ａ）において、小型船１０のジェット推進機２４をエンジン１６（図１参照）で駆動して艇底２６の吸込口２８から水６８を吸い込み、吸い込んだ水をステアリングノズル３３から水ジェット６９として矢印ｂの如く後方に噴射する。
水ジェット６９の噴射で、小型船１０が直進状態で滑走する。 Next, the operation of the sponson 40 provided in the small boat 10 according to the present invention will be described with reference to FIGS.
6 (a) and 6 (b) are diagrams illustrating a state where the small boat according to the present invention is slid.
In (a), the jet propulsion device 24 of the small boat 10 is driven by the engine 16 (see FIG. 1) to suck water 68 from the suction port 28 of the boat bottom 26, and the sucked water is made into a water jet 69 from the steering nozzle 33. Injected backward as shown by arrow b.
By the injection of the water jet 69, the small boat 10 slides in a straight traveling state.

小型船１０が直進状態で滑走することにより、左右のスポンソン４０，４１（右のスポンソン４１は（ｂ）参照）が水面６８ａから浮き上がり、左右のスポンソン４０，４１の滑走部４５，４６（滑走部４６は図示せず）が水面６８ａに接触する。
このように、左右のスポンソン４０，４１の滑走部４５，４６を水面に接触させることにより、小型船１０が滑走しているときの艇体表面積を大きく確保する。 As the small boat 10 slides straight, the left and right sponsons 40 and 41 (see (b) for the right sponsons 41) are lifted from the water surface 68a, and the sliding portions 45 and 46 (sliding portions) of the left and right sponsons 40 and 41 are lifted. 46 is not shown) contacts the water surface 68a.
In this way, by bringing the sliding portions 45 and 46 of the left and right sponsons 40 and 41 into contact with the water surface, a large hull surface area is ensured when the small boat 10 is sliding.

（ｂ）において、小型船１０が直進状態で滑走中に、乗員７０が操作ハンドル１４を矢印ｃの如く操作することにより、艇体１１の艇尾２２に備えたステアリングノズル３３を矢印ｄの如く左側にスイング移動させる。   In (b), while the small boat 10 is sliding straight, the occupant 70 operates the operation handle 14 as indicated by arrow c, so that the steering nozzle 33 provided on the stern 22 of the hull 11 is indicated as indicated by arrow d. Swing to the left.

図７（ａ），（ｂ）は本発明に係る小型船のスポンソンが水中に沈んだ状態を説明する図である。
（ａ）において、ステアリングノズル３３をスイング移動して左側に向けることにより、ステアリングノズル３３から水ジェット６９を矢印ｅの如く左側後方に噴射する。
これにより、小型船１０の艇尾２２が矢印ｆの如く移動して左旋回を開始する。この際に、小型船は旋回する側、すなわち左側に傾き、左のスポンソン４０が水中に沈む。 FIGS. 7A and 7B are views for explaining a state in which the sponsons of the small boat according to the present invention are submerged in water.
In (a), the steering nozzle 33 is swung and directed to the left, whereby a water jet 69 is ejected from the steering nozzle 33 to the left rear as indicated by an arrow e.
As a result, the stern 22 of the small boat 10 moves as shown by the arrow f and starts turning left. At this time, the small boat tilts to the turning side, that is, the left side, and the left sponson 40 sinks into the water.

（ｂ）において、スポンソン４０が水中に沈むことで、水６８（（ａ）参照）が矢印ｇの如く流れ、水６８を突起部５７…（最前列の突起部５７ａを含む）で案内して傾斜部５３の表面５６から浮き上がらせる。
よって、突起部５７…の後方部位に剥離層６５…ができ、剥離層６５…において水６８を傾斜部５３の表面５６から離す。
このように、スポンソン４０の傾斜部５３から水を離すことで、スポンソン４０に対する横方向への水６８の抵抗を小さく抑え、いわゆるスポンソン４０の水に対するグリップを適度に抑える。 In (b), when the sponson 40 sinks in water, the water 68 (see (a)) flows as shown by the arrow g, and the water 68 is guided by the protrusions 57 (including the protrusions 57a in the front row). It floats from the surface 56 of the inclined portion 53.
Therefore, a release layer 65 is formed at the rear portion of the projection 57, and the water 68 is separated from the surface 56 of the inclined portion 53 in the release layer 65.
Thus, by separating the water from the inclined portion 53 of the sponson 40, the resistance of the water 68 in the lateral direction with respect to the sponson 40 is suppressed, and the grip of the so-called sponson 40 with respect to the water is moderately suppressed.

図８（ａ），（ｂ）は本発明に係る小型船を左旋回する状態を説明する図である。
（ａ）において、スポンソン４０に対する横方向への水６８の抵抗を小さく抑えることにより、水ジェット６９の噴射力で、艇体１１の艇尾２２を旋回側と反対側に矢印ｈの如く比較的大きく移動させる。
艇体１１の艇尾２２を矢印ｈの如く移動させることで、艇体１１の艇首３８が矢印ｉの如く移動する。 FIGS. 8A and 8B are views for explaining a state of turning the small boat according to the present invention to the left.
In (a), the resistance of the water 68 in the lateral direction with respect to the sponson 40 is suppressed to be small, so that the stern 22 of the hull 11 is relatively moved to the opposite side of the turning side as indicated by the arrow h by the injection force of the water jet 69. Move it a lot.
By moving the stern 22 of the hull 11 as indicated by the arrow h, the bow 38 of the hull 11 moves as indicated by the arrow i.

（ｂ）において、艇体１１の艇尾２２を大きく移動させることで、小型船１０を旋回軌跡７２の如く小さな円弧の旋回軌跡を描く旋回、すなわち小回りさせる。
よって、小型船１０に小回りが要求される用途に好適に適用することができる。 In (b), by moving the stern 22 of the hull 11 largely, the small boat 10 turns, that is, turns a small arc like the turning locus 72, that is, turns slightly.
Therefore, the present invention can be suitably applied to applications where a small turn is required for the small boat 10.

これに対して、従来のスポンソンは突起部５７…を備えていないので、スポンソンの傾斜部から水を離し難い。
このため、スポンソンに対する横方向への水の抵抗が大きくなり、いわゆるスポンソンの水に対するグリップが増加する。
よって、艇尾の移動量を小さく抑えて小型船を大きな円弧を描いて大回りに旋回させる。これにより、小型船に大回りが要求される用途に好適に適用することができる。 On the other hand, since the conventional sponsons are not provided with the protrusions 57, it is difficult to separate water from the sloping portions of the sponsons.
For this reason, the resistance of the water in the lateral direction with respect to the sponsons increases, and the grip of the so-called sponsons with respect to the water increases.
Therefore, the small boat is turned around a large arc while keeping the amount of stern movement small. Thereby, it can apply suitably for the use for which a large turn is requested | required of a small ship.

なお、前記実施の形態では、本発明に係る小型船２０を艇体１１の後部にジェット推進機２４を設けた小型推進艇に適用して例について説明したが、これに限らないで、その他の小型船に適用することも可能である。   In the above embodiment, the small boat 20 according to the present invention is applied to the small propulsion boat provided with the jet propulsion device 24 at the rear of the hull 11. However, the present invention is not limited to this. It can also be applied to small ships.

また、前記実施の形態では、スポンソン４０の傾斜部５３に３本の突起部５７…を備えたものを例に説明したが、突起部５７…の本数は３本に限定するものではなく、１〜２本や、４本以上の突起部５７を備えることも可能である。
さらに、突起部５７の形状は実施の形態の例に限定するものではなく、適宜の変更が可能である。要は、スポンソン４０の傾斜部５３から水を離すことが可能な形状であればよい。 Moreover, although the said embodiment demonstrated the thing provided with the three protrusion parts 57 ... in the inclination part 53 of the sponson 40, the number of the protrusion parts 57 ... is not limited to three, 1 It is also possible to provide two or four or more protrusions 57.
Furthermore, the shape of the protrusion 57 is not limited to the example of the embodiment, and can be appropriately changed. In short, any shape that can separate water from the inclined portion 53 of the sponson 40 may be used.

また、前記実施の形態では、ハル２５の左の側壁３５にスポンソン４０を取り付ける取付部材としてボルト４２…およびナット６４…を例に説明したが、取付部材はこれに限定するものではなく、その他の部材を取付部材として使用することも可能である。   Moreover, in the said embodiment, although the bolt 42 ... and the nut 64 ... were demonstrated to the example as an attachment member which attaches the sponson 40 to the left side wall 35 of the hull 25, an attachment member is not limited to this, Others It is also possible to use the member as an attachment member.

本発明は、艇体を構成する左右の側壁に左右のスポンソンを取り付けた小型船に好適である。   The present invention is suitable for a small boat in which left and right sponsons are attached to left and right side walls constituting a hull.

本発明に係る小型船の側面図である。1 is a side view of a small boat according to the present invention. 本発明に係る小型船の要部を示す側面図である。It is a side view which shows the principal part of the small boat which concerns on this invention. 本発明に係る小型船に備えたスポンソンを示す斜視図である。It is a perspective view which shows the sponson with which the small boat which concerns on this invention was equipped. 本発明に係る小型船に備えたスポンソンを示す側面図である。It is a side view which shows the sponson with which the small boat which concerns on this invention was equipped. 図４の５−５線断面図である。FIG. 5 is a sectional view taken along line 5-5 of FIG. 本発明に係る小型船を滑走した状態を説明する図である。It is a figure explaining the state which slid the small ship which concerns on this invention. 本発明に係る小型船のスポンソンが水中に沈んだ状態を説明する図である。It is a figure explaining the state where the sponson of the small boat which concerns on this invention sank in water. 本発明に係る小型船を左旋回する状態を説明する図である。It is a figure explaining the state which carries out the left turn of the small boat which concerns on this invention. 従来の基本構成を説明する図である。It is a figure explaining the conventional basic composition. 従来の小型船を旋回操作する例を説明する図である。It is a figure explaining the example which carries out turning operation of the conventional small ship. 従来の小型船が旋回する例を説明する図である。It is a figure explaining the example in which the conventional small ship turns.

符号の説明Explanation of symbols

１０…小型船、１１…艇体、２５…ハル、３５…左の側壁（側壁）、３６…右の側壁（側壁）、４０…左のスポンソン（スポンソン）、４１…右のスポンソン（スポンソン）、４２…ボルト（取付部材）、４３…前端部、４４…後端部、４５…滑走部、４７…取付部、４８…取付部の下辺、４９…取付部の上辺、５１…滑走部の側辺、５３…傾斜部、５４…傾斜部の上辺、５５…傾斜部の下辺、５７…突起部、６４…ナット（取付部材）。   DESCRIPTION OF SYMBOLS 10 ... Small ship, 11 ... Hull, 25 ... Hull, 35 ... Left side wall (side wall), 36 ... Right side wall (side wall), 40 ... Left sponson (Sponson), 41 ... Right sponson (Sponson), 42: Bolt (mounting member), 43: Front end portion, 44: Rear end portion, 45 ... Sliding portion, 47 ... Mounting portion, 48 ... Lower side of mounting portion, 49 ... Upper side of mounting portion, 51 ... Side of sliding portion 53 ... Inclined portion, 54 ... Upper side of the inclined portion, 55 ... Lower side of the inclined portion, 57 ... Projection, 64 ... Nut (attachment member).

Claims (4)

艇体を構成する左右の側壁に、前後方向に延びるスポンソンをそれぞれ取り付けた小型船において、
前記スポンソンは、前記側壁に当接する取付部と、
この取付部の下辺から略水平に張り出した滑走部と、
この滑走部の側辺および前記取付部の上辺をつなぐ傾斜部と、
この傾斜部から上方へ突出した突起部とを備え、
前記傾斜部に沿って流れる水を、前記突起部で案内して傾斜部から離すことを特徴とする小型船。 In small boats with sponsons extending in the front-rear direction on the left and right side walls constituting the hull,
The sponson has an attachment portion that contacts the side wall;
A sliding part protruding substantially horizontally from the lower side of the mounting part;
An inclined portion connecting the side of the sliding portion and the upper side of the mounting portion;
And a protruding portion protruding upward from the inclined portion,
A small ship characterized in that water flowing along the inclined portion is guided by the protrusion and separated from the inclined portion. 前記傾斜部を上辺から下辺に向けて下り勾配に傾斜し、前記突起部を傾斜部の上辺から下辺に向けて後方へ延びるよう突条に形成したことを特徴とする請求項１記載の小型船。   2. The small boat according to claim 1, wherein the inclined portion is inclined downwardly from the upper side to the lower side, and the protrusion is formed as a ridge so as to extend rearward from the upper side to the lower side of the inclined portion. . 前記スポンソンをボルトなどの取付部材で前記側壁に取り付け、この取付部材を避けて前記突起部を設けたことを特徴とする請求項１記載の小型船。   2. The small boat according to claim 1, wherein the sponson is attached to the side wall with an attachment member such as a bolt, and the projection is provided to avoid the attachment member. 前記突起部を前記スポンソンの前端部と後端部との間に複数個設け、これら複数の突起部のうち、最前列に配置し、かつスポンソンの前端部に設けた突起部を、その他の突起部より小さく形成したことを特徴とする請求項２又は請求項３記載の小型船。
A plurality of the protrusions are provided between the front end portion and the rear end portion of the sponson, and among the plurality of protrusions, the protrusions provided in the front row and provided at the front end portion of the sponson are the other protrusions. The small boat according to claim 2 or 3, wherein the small boat is formed smaller than the portion.
JP2003317503A 2003-09-09 2003-09-09 Small ship Expired - Fee Related JP4205543B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2003317503A JP4205543B2 (en) 2003-09-09 2003-09-09 Small ship
CA002480834A CA2480834C (en) 2003-09-09 2004-09-08 Small boat
US10/935,077 US7168386B2 (en) 2003-09-09 2004-09-08 Small boat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003317503A JP4205543B2 (en) 2003-09-09 2003-09-09 Small ship

Publications (2)

Publication Number Publication Date
JP2005082045A JP2005082045A (en) 2005-03-31
JP4205543B2 true JP4205543B2 (en) 2009-01-07

Family

ID=34269854

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003317503A Expired - Fee Related JP4205543B2 (en) 2003-09-09 2003-09-09 Small ship

Country Status (3)

Country Link
US (1) US7168386B2 (en)
JP (1) JP4205543B2 (en)
CA (1) CA2480834C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2439938A (en) * 2006-01-30 2008-01-16 Zentech Inc A vessel roll motion damping device
AU2011254550B2 (en) 2010-05-21 2013-11-07 Noviga Research Ab Novel pyrimidine derivatives
US8393287B2 (en) 2010-11-30 2013-03-12 Bombardier Recreational Products Inc. Sponsons for a watercraft
JP5886411B2 (en) 2011-03-24 2016-03-16 ノビガ・リサーチ・エービーＮｏｖｉｇａ Ｒｅｓｅａｒｃｈ ＡＢ New pyrimidine derivatives
KR102144563B1 (en) * 2019-07-08 2020-08-13 정요한 Ship posture stabilization system

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6136087A (en) * 1984-07-27 1986-02-20 Yamaha Motor Co Ltd Water playing device equipped with vanes
US5092260A (en) * 1990-09-14 1992-03-03 Golden Empire Trading Co., Inc. Personal watercraft with brakes
US5713297A (en) * 1996-09-05 1998-02-03 Yamaha Hatsudoki Kabushiki Kaisha Adjustable sponson for watercraft
US6546888B2 (en) * 2000-06-23 2003-04-15 Bombardier Inc. Removable stabilizing fin for a watercraft
JP3984467B2 (en) * 2001-12-11 2007-10-03 ヤマハ発動機株式会社 Water jet propulsion boat
US6712016B1 (en) * 2002-09-06 2004-03-30 Polaris Industries Inc. Personal watercraft having ventilated sponsons

Also Published As

Publication number Publication date
CA2480834A1 (en) 2005-03-09
US20050092224A1 (en) 2005-05-05
JP2005082045A (en) 2005-03-31
US7168386B2 (en) 2007-01-30
CA2480834C (en) 2007-09-04

Similar Documents

Publication Publication Date Title
JPH02164694A (en) Steering gear for small jet propulsion boat
JP4205543B2 (en) Small ship
US7207286B2 (en) Tri-point hydro sled
JPS643718B2 (en)
JPH04292295A (en) Navigation stabilizer for water-jet propeller ship
JPH0657555B2 (en) Small water vehicle
US6183318B1 (en) Reverser for watercraft
JP2011195127A (en) Submarine including water jet on both right and left wings
US11427284B1 (en) Personal watercraft hull
JP4244017B2 (en) Rectification structure of pod propulsion ship
JP2001233288A (en) Water jet propelling boat
US20050118899A1 (en) Reverse system for water-jet propulsion personal watercraft
JP2005132263A (en) Water jet propulsion type small watercraft
JP2009220612A (en) Small planing boat
JP2584777B2 (en) Steering system for small jet propulsion boat
JP2000280985A (en) Bow thruster of ship
JPH0986481A (en) Bottom structure of water jet propulsion boat
JP3984467B2 (en) Water jet propulsion boat
JP3621374B2 (en) Rudder with thruster
JP4229239B2 (en) Ship bottom structure
JP2005231407A (en) Water jet propulsion type small planing craft
JP2509980Y2 (en) Small planing boat
JP2021046072A (en) Jet propulsion boat
US6729256B2 (en) Personal watercraft
US20050124235A1 (en) Reverse system for water-jet propulsion personal watercraft

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20051201

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20081009

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20081014

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20081016

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111024

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20111024

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20121024

Year of fee payment: 4

LAPS Cancellation because of no payment of annual fees